Is there a way to automatically create new material in all meshes in the model?
I am not sure if I understood the question correctly, but If you want to assign the same material to all objects then select all objects, click on the Object you want the materials to copy from (it gets highlighted in yellow) then press &quot;Ctrl L&quot; and choose Materials. All objects should share the same Materialdata then.
If you just have one model with different textures on it, go into edit mode select all vertices choose the one material you want to copy in the material bar on the right and press &quot;assign&quot; under the material options.